Inka Siefker

August 26, 2013

Mike Kepka/The Chronicle

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Guinness World Record holder for contortion archery Inka Siefker, 26, of San Francisco, works on her contortion archery technique the Royal Russian Kung-Fu Circus Training Academy of Heaven Mountainin San Francisco.

Mike Kepka/The Chronicle

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Guinness World Record holder for contortion archery Inka Siefker, 26, of San Francisco, works on her contortion archery technique the Royal Russian Kung-Fu Circus Training Academy of Heaven Mountainin San Francisco.